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US Federal Noxious Weed List

Updated: February 2012
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Aquatic/Wetland

  • Aarowhead (Sagittaria sagittifolia)
  • Aarow-leaf false pickerelweed (Monochoria hastata)
  • Ambulia (Limnophila sessiliflora)
  • Anchored water hyacinth; rooted water hyacinth (Eichhornia azurea)
  • Broad-leaf paperbark tree (Melaleuca quinquenervia)
  • Duck lettuce (Ottelia alismoides)
  • Exotic bur-reed (Sparganium erectum)
  • Giant salvinia (Salvinia auriculata, S. biloba, S. herzogii, S. molesta)
  • Heart-shape false pickerelweed (Monochoria vaginalis)
  • Hydrilla (Hydrilla verticillata)
  • Killer algae (Caulerpa taxifolia)
  • Miramar weed (Hygrophila polysperma)
  • Mosquito fern; water velvet (Azolla pinnata)
  • Oxygen-weed (Lagarosiphon major)
  • Water spinach; swamp morning-glory (Ipomoea aquatica)
  • Wetland nightshade (Solanum tampicense)

Parasitic

  • Aeginetia spp.
  • Alectra spp.
  • Broomrapes (Orobanche spp., other than the following species: O. bulbosa, O. californica, O. cooperi, O. corymbosa, O. dugesii, O. fasciculata, O. ludoviciana, O. multicaulis, O. parishii, O. pinorum, O. uniflora, O. valida, O. vallicola)
  • Dodders (Cuscuta spp., other than the following species: C. americana, C. applanata, C. approximata, C. attenuata, C. boldinghii, C. brachycalyx, C. californica, C. campestris, C. cassytoides, C. ceanothi, C. cephalanthi, C. compacta, C. coryli, C. cuspidata, C. decipiens, C. dentatasquamata, C. denticulata, C. epilinum, C. epithymum, C. erosa, C. europaea, C. exaltata, C. fasciculata, C. glabrior, C. globulosa, C. glomerata, C. gronovii, C. harperi, C. howelliana, C. indecora, C. leptantha, C. mitriformis, C. obtusiflora, C. odontolepis, C. pentagona, C. planiflora, C. plattensis, C. polygonorum, C. rostrata, C. runyonii, C. salina, C. sandwichiana, C. squamata, C. suaveolens, C. suksdorfii, C. tuberculata, C. umbellata, C. umbrosa, C. veatchii, C. warneri)
  • Witchweed (Striga spp.)

Terrestrial

  • African boxthorn (Lycium ferocissimum)
  • African feathergrass (Pennisetum macrourum)
  • Asian sprangletop (Leptochloa chinensis)
  • Benghal dayflower (Commelina benghalensis)
  • Bittervine (Mikania micrantha)
  • Brazilian satintail (Imperata brasiliensis)
  • British yellowhead; British elecampane (Inula britannica)
  • Cape tulip ( Homeria spp.)
  • Cape weed (Arctotheca calendula)
  • Catclaw mimosa (Mimosa pigra)
  • Cattail grass (Setaria pallide-fusca)
  • Coat buttons (Tridax procumbens)
  • Cogongrass (Imperata cylindrica)
  • Common crupina (Crupina vulgaris)
  • Creeping croftonweed (Ageratina riparia)
  • Devil's thorn (Emex spinosa)
  • False caper; Geraldton carnation weed (Euphorbia terracina)
  • Giant hogweed (Heracleum mantegazzianum)
  • Giant sensitive plant (Mimosa diplotricha)
  • Goatsrue (Galega officinalis)
  • Illyrian thistle (Onopordum illyricum)
  • Itchgrass (Rottboellia cochinchinensis)
  • Jointed prickly pear (Opuntia aurantiaca)
  • Kikuyugrass (Pennisetum clandestinum)
  • Kodo-millet (Paspalum scrobiculatum)
  • Kyasumagrass (Pennisetum pedicellatum)
  • Lightning weed (Drymaria arenarioides)
  • Liverseed grass (Urochloa panicoides)
  • Madagascar ragwort (Senecio madagascariensis)
  • Maidenhair creeper (Lygodium flexuosum)
  • Malabar melastome (Melastoma malabathricum)
  • Mile-a-minute weed (Mikania cordata)
  • Missiongrass; thin napiergrass (Pennisetum polystachion)
  • Murainagrass (Ischaemum rugosum)
  • Old world climbing fern (Lygodium microphyllum)
  • Onionweed (Asphodelus fistulosus)
  • Pilipiliula (Chrysopogon aciculatus)
  • Prosopis alpataco, P. argentina, P. articulata, P. burkartii, P. caldenia, P. calingastana, P. campestris, P. castellanosii, P. denudans, P. elata, P. farcta, P. ferox, P. fiebrigii, P. hassleri, P. humilis, P. kuntzei, P. pallida, P. palmeri, P. reptans, P. rojasiana, P. ruizlealii, P. ruscifolia, P. sericantha, P. strombulifera, P. torquata
  • Red rice (Oryza longistaminata, O. punctata, O. rufipogon)
  • Serrated tussock (Nassella trichotoma)
  • Sessile joyweed (Alternanthera sessilis)
  • South African ragwort (Senecio inaequidens)
  • Stemless thistle (Onopordum acaulon)
  • Thorny acacia; gum arabic tree (Acacia nilotica)
  • Three-cornered jack (Emex australis)
  • Tropical soda apple (Solanum viarum)
  • Turkeyberry (Solanum torvum)
  • Velvet fingergrass; annual conchgrass (Digitaria velutina)
  • Wild blackberry (Rubus fruticosus)
  • Wild oat; animated oat (Avena sterilis)
  • Wild raspberry (Rubus moluccanus)
  • Wild safflower (Carthamus oxyacantha)
  • Wild sugarcane (Saccharum spontaneum)
  • Winged false buttonweed (Spermacoce alata)
  • Wormleaf salsola (Salsola vermiculata)